Home / 34,750.23-47,955.60-20,406.30

Finding the Fourth Proportional to 34,750.23, 47,955.60 and 20,406.30

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Solution

The fourth proportional to 34,750.23, 47,955.60 and 20,406.30 is: 28,160.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,750.23 : 47,955.60 = 20,406.30 : x
  2. Step 2: Convert to fraction form
    34,750.23/47,955.60 = 20,406.30/x
  3. Step 3: Cross multiply
    34,750.23x = 47,955.60 × 20,406.30
  4. Step 4: Simplify right side
    34,750.23x = 978,596,360.28
  5. Step 5: Solve for x
    x = 978,596,360.28/34,750.23
  6. Step 6: Final answer
    x = 28,160.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.